Sand elevator



Nov. 24, 1931. B THOM N 1,833,341

SAND ELEVATOR Filed July 50, 1930 2 Sheets-Sheet l INVENTOR d/fisuzi: 7/?0/v/ira4 V50 A zhwk ATTORN EY Nov. 24, 1931.

c. B. THOMPSON SAND ELEVATOR 2 Sheets-Sheet 2 Fi led July 30, 1930 ATTORNEY Patented Nov. 24, 1931 FEE 7 CHARLES n. THOMPSON, or SEATTLE, wasnnve'roiv SAN D ELEVATOR Application filed July so,

This invention relates to improvements in elevators for lifting sand from the bottom of rivers, etc., and discharging it any place desired. The machine of my invention may be used wherever work of this kind isto be done, but the following description is of the type used in mining. V 4

Elevators of this type have depended entirely upon the amount of vacuum that'could be created for lifting the sand in one end and discharging it from the other end of the machine. In machines of this class, a very great amount of air hasbeen heretofore required and the amount of sand lifted is there'- by limited, dueto the discharge pipe being almost filled to capacity with the operating air, which forms a handicap in the conveyance of much sand, and especially in forcing it to any great distance.

In my iinproved'type of elevator, a very small amount of air is used under great pres sure, and the intake and discharge pipe rela tively large. In invention a low vacuum is produced which is just enough to readily carry the sand to the discharge nozzle. 1 have also provided a special base for mounting the machine whereby it can be rotated, tilted and the operating mechanism moved longitudinally on its track.

1 accomplish these and other objects by the peculiar arrangement and combination of the parts, as will be more clearly shown in the following specification, shown in the accompanying drawings and finally pointed out in the appended claims.

In the drawings Figure 1 is a side elevation of the machine.

Figure 2 is a longitudinal cross section of the nozzle.

mounted or provided with brackets 5 which are pivotally mountedon the turntable 2 by means of a pintle 6"which allows the channel Fi ure 3 is an enlar ed section taken u Jon 1930. Serial No. 471,786.

member to be tilted to any angle desired. In

the channel 4 are slidably mounted angle supports 7 and 8carrying anozzle mechanism with its intake in the discharge pipe. Near the upper end of channel 4: is supported a bracket 9 (Figure 1 and Figure 3). Through this bracket passes the upper or plain end of-a screw rodlO which is provided with'collars 11 and 12 to prevent it from moving longitudinally. The lower or threaded portion of the screw passesthrough a bracket 13 which is securedto angle supports 7 and 8 and inwhich is clampedthe intake pipe 14. A worm gear l5 mounted for rotative, non-axial movement is mounted on and has threaded connection with the screw rod 10. This worm gear is actuated by a worm 16 which is secured to a shaft 17 which is supported on channel member 1 by means of brackets 18. Shaft 17 is provided with a hand wheel 19 (see Figure 1 and Figure 3), conveniently operable to provide that screw 10 will be rotated due to worm 16 and worm gear 15, which willthus cause bracket 13 to move along the screw, carrying with it the angle-supports 7 and 8. Near the upper end of angle supports 7 and 8 (Figure 1) is attached a housing 20 bored longitudinally to receive a nozzle 21 and a ring 22, which will be described later. In the'center of housing 20 is a circular chamber 23 surrounding the nozzle 21. This circular chain' ber communicates with an air pipe 24 by means of passage 25. i The nozzle 21 (see Figures 2, 3 and 4) is provided with a series of shallow grooves, as indicated at26. Pressed firmly over the end of this nozzle a ring 22 is mounted. The nozzle and the ring 22 are mounted in the hereof the housing 20 by first inserting the nozzle from the right hand end (see-Figure 2) till it presses against the shoulder 28, and

then inserting the ring 22 and firmly clampv ing'them in place by means of flange 29 in which is secured a discharge pipe 30. To the other end of the housing 20 is secured a flange 31 into which is screwed the intake pipe 14. 1 In case of a low vacuum'oraratherlong' lift, means are provided for boosting the sand to the nozzleby means of a by-pi 32 1 a up through intake pipe 14-, the lower end of which is placed in the river bed or other source of supply, passes through the center of the nozzle 21, where it strikes the high velocity stream of air which greatly accelerates its speed and can force it for very great distance. This invention has been found under repeated actual practice to deliver greater quantities of sand than hasheretofore been accomplished by other known methods and at less'cxpenditure of energy. r

t will be'quite. apparent from the above construction that the channel member in which the suction pipe,-discharge pipe and nozzle mechanism are mounted is capable of rotative movement and adjustment at any anglefin the plane of rotation, while the channelsupports carrying the variouspipes andloperative parts are longitudinally adjustable at will. I claim:-.- V H 1. In a sand elevator, a channel member mounted for angular adj ustability about veriical and horizontal axes, angle supports adjustable longitudinally :of the channel member, a suction pipe car ied by the angle supports, and a nozzle for air under pressure forming part of the suction pipe and directing the air under pressure in the direction of desired'fiow of sand.

2. Ina sand elevator, a channel member mounted for angular adjustability about verticalia-nd horizontal axes, angle supports adjustable-longitudinally of the channel member, a suction pipe carried by the angle supp rts, an'da nozzle for air under pressure forniingpart of the suction pipe and directing the air under pressure in the direction of desired-flow of sand, said nozzle including an annular member formed with a series of d0 op'ento' a source of air under pressure, said nozzle being exteriorly formed with aplu rality of longitudinally. ranging, shallow, air

receiving channels, and a ring overlying the delivery end of the channels to confine the airblast l I a r l. A sand elevator including channel member mounted for angular adjustability intensified air streams, in the direction of movement of the 'material.

5. In a sand elevator, a pipe through which thesand is directed from a point of deposit to a point of d1scharge,a casting arranged in and'forming a continuation of said pipe, said casting being formed with a channel concenlid trio with the pipe and open to a source ofair 7 under pressure, and a nozzle arranged in the casting and having an interior diameter corresponding to that of the pipe, the exterior of the surface of the nozzle being formed with a series of longitudlnally ranging, in-' tric with the pipeand open to a source oi air under pressure, a nozzle arranged in the casting and having an interior diameter corresponding to that of the pipe, the exterior of the surface of the nozzle being formed with a series of longitudinally ranging, inwardly 1 inclined, shallow channels open to said concentric channel, and a directing ring overlying the deliveryends of the longitudinally ranging'channels of the nozzle.

In testimony whereof I afiix my signature.

CHARLES B. THOMPSON. 

